One of our local unfinished wood furniture stores will custom make bookcases to pretty much any dimensions. Maybe you have a similar store in your area?

Make your own. Go to the lumber store, pick up some white oak, and put one together. If you have a circular saw or miter saw, you can do it. Easy cuts.

I have a couple that are 9" deep that we use on the sides of our FR sofa as end tables. The bad news is both are thrift store finds....

We want to replace them, but we will go custom built for that.

These guys carry a 9" deep bookcase....

Another option, which sounds insane and complex but isn't, would be to cut out a recess in the wall and slide a regular-depth book shelf in there. It would actually look like a built-in and look great. If you want it wider than the 16" between studs, you can cut a stud or studs and attach a 2x4 horizontally between the two end studs and the bottom of the cut stud.

Thanks. I know I could make my own, that was the first thing I thought of. I don’t
have a power saw. Although I could buy a saw, I have too many projects needing
finishing. A notebook full. The hours that it would take need to be devoted
elsewhere. Ditto cutting a hole in the wall.

CD cases seem to be uniformly vertical. But if it didn’t have dividers and
was finished on the proper sides to be turned, I could buy 3 and set them
horizontally. But now I’m thinking of what new search terms to use….

If a local school has a wood shop, perhaps you could get someone to make one. Barring that, it might not cost that much to get a cabinet or furniture maker to make something simple.

I remember my brother making shelves for his room when we were young. I remember wood shelves (HD or Lowe's will make cuts for you) and stacked bricks -- I think he put dowels through the holes to keep the bricks from moving, but I'm not sure if he drilled holes throug the shelves or if they were just stacked in place. I'm sure there are other creative approaches.

Would floating shelves work for you?

But now I’m thinking of what new search terms to use….

Try media or multi-media storage/shelves/units.

How about a wall shelf that could sit on the floor? Or even hang it on the wall, but low? Or, add some feet from the hardware store.

This isn't the best example but this is sort of what I mean. Flat on the bottom so presumably could just sit on the floor.

http://www.pbteen.com/products/elsie-shelf/?pkey=cshelves-hooks&&cshelves-hooks

Maybe try looking for wall shelving units - they are usually shallower than a regular book shelf. There are a few with a base shelf that you could place on the floor. Would your wicker baskets fit on an 8" shelf?

ETA - Sueb20 - what's the saying 'great minds think alike' - lol

I've never seen anything narrower than the Billy from Ikea at 11". I've also considered having someone come in to make them, or even a DIY.

http://m.ikea.com/us/en/catalog/products/spr/09023375/

I searched on "paperback book shelves" and found these 5.5"-deep ones.

http://www.multimediashelves.com/paperback-solid-wood-bookcases.html

And some folks used Ikea components to combine for not-very-deep shelves. I don't know if the other dimensions work for you.

http://www.ikeahackers.net/2007/06/slim-paperback-book-case.html

This is 9.31"; it's from Walmart.
http://www.walmart.com/ip/Ameriwood-3-Shelf-Bookcase-Multiple-Finishes/17480009?action=product_interest&action_type=title&item_id=17480009&placement_id=irs-106-t1&strategy=PWVUB&visitor_id&category=&client_guid=bf3808d7-64b0-42c8-9d5a-b64ad0e64f6c&customer_id_enc&config_id=106&parent_item_id=13044874&parent_anchor_item_id=13044874&guid=ff5e109e-228b-43c9-9878-87015ea4d906&bucket_id=irsbucketdefault&beacon_version=1.0.1&findingMethod=p13n

Also from Walmart, this is 8.11" deep. There might be other "multimedia towers" with other dimensions.

http://www.walmart.com/ip/Sauder-Beginnings-Multimedia-Storage-Tower/23626020?action=product_interest&action_type=title&item_id=23626020&placement_id=irs-106-t1&strategy=PWVUB&visitor_id&category=&client_guid=bf3808d7-64b0-42c8-9d5a-b64ad0e64f6c&customer_id_enc&config_id=106&parent_item_id=13044874&parent_anchor_item_id=13044874&guid=ff5e109e-228b-43c9-9878-87015ea4d906&bucket_id=irsbucketdefault&beacon_version=1.0.1&findingMethod=p13n

"Multimedia" might be a good term to incorporate.

Here's some interesting stuff--including a suggestion of Elfa!

This may be too tall, but there's another shorter version as well.

http://www.wayfair.com/Lavish-Home-35.75-Shelf-Bookcase-83-11-3-TMK6393.html

Here are some!
http://www.thewoodlandmills.com/24babo.html

And Ikea has this tall one in white, at 9.5 inches; not sure if they have it in other configurations.

Ikea has some that are shallower than Billy, like this one. You could just omit the door.

http://www.ikea.com/us/en/catalog/products/S59046831/

TY writersblock! I thought the Billy was the narrowest. See it comes in lots of colors too. Going to look for stained.........

We did crl's suggestion a few years ago, having an unfinished furniture store adjust a stock oak bookcase to a shallower depth. It didn't cost that much and fits the space much better.

Thanks again for all the ideas. Looking again at the location, I have
decided it needs to be either oak, or something totally different, like metal. It
will literally touch an oak buffet on one side. I tried putting another 2 small
(but not shallow enough to actually use) bookcases there, that are in different finishes, one dark
stained pine, and another a cherry laminate shoe organizer, just to see how different finishes looked. Both ended up just
looking like I stuck something totally random there. I think I’m too fussy for
that.

I got excited about that Ikea hack, only to find that the Borghum line is
not made any more. I looked through the Ikea catalog, and came up with nothing.

I looked at Hobby Lobby yesterday for metal. But it being the Christmas
season means they have little furniture on display now. Looked at wall shelves
too, figuring many could be set on the floor. But most of these are too shallow
and too small.